c.j

Jump

C.J performs an unconditional control transfer. The offset is sign-extended and added to the pc to form the jump target address. C.J can therefore target a ±2 KiB range. It expands to jal x0, offset.

Assembly format

c.j imm

Decode Variables

signed Bits<12> imm = sext({$encoding[12], $encoding[8], $encoding[10:9], $encoding[6], $encoding[7], $encoding[2], $encoding[11], $encoding[5:3], 1'd0}, 12);

Execution

if (implemented?(ExtensionName::C) && MISA_CSR_IMPLEMENTED && (CSR[misa].C == 1'b0)) {
  reserved_instruction($encoding);
}
jump($pc + $signed(imm));

Exceptions

This instruction may result in the following synchronous exceptions:

  • IllegalInstruction

  • InstructionAddressMisaligned

Encoding

svg

Defining extension

Zca

Access

M

Always

Containing profiles

  • Mandatory: None

  • Optional: RVA20S64, RVA20U64, RVA22S64, RVA22U64, RVA23S64, RVA23U64, RVB23S64, RVB23U64, RVI20U32, RVI20U64